Performance analysis and optimization for non-uniformly deployed mmWave cellular network

EURASIP Journal on Wireless Communications and Networking

Juan Bai¹  Xuefei Zhang²  Yinjun Liu²  Yue Wang² 

[1]Air Force Engineering University

[2]National Engineering Laboratory for Mobile Network Technologies, Beijing University of Posts and Telecommunications

关键词: MmWave cellular network;    Non-uniform distribution;    Stochastic geometry;   

DOI  :  10.1186/s13638-019-1370-z

来源: DOAJ

【 摘 要 】

Abstract In this paper, we propose a multi-tier mmWave cellular framework where sub-6 GHz macro BSs (MBSs) are assumed as a Poisson point process (PPP) and small-cell BSs (SBSs), operating on either mmWave or sub-6 GHz, follows non-uniform Poisson cluster point (PCP) model. This paper proposes both centralized and distributed user association algorithms. For the centralized two-step algorithm, we aim to maximize the sum rate while satisfying quality of service (QoS) and power consumption constraints based on eigenvalue analysis. Then, we derive the association probability, the coverage probability, and the average achievable rate, cosidering directivity and blockage effect, by stochastic geometry. On this basis, a distributed user association algorithm is proposed. The simulation results demonstrate the accuracy of our theoretical analysis and also reveal the effect of some parameters on the network performance. In addition, the proposed centralized algorithm can achieve near-optimal sum rate with a low complexity.

【 授权许可】

Unknown